SDL  2.0
Functions | Variables
testrumble.c File Reference
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "SDL.h"
+ Include dependency graph for testrumble.c:

Go to the source code of this file.

Functions

int main (int argc, char **argv)
 The entry point of this force feedback demo. More...
 

Variables

static SDL_Haptic * haptic
 

Function Documentation

◆ main()

int main ( int  argc,
char **  argv 
)

The entry point of this force feedback demo.

Parameters
[in]argcNumber of arguments.
[in]argvArray of argc arguments.

Definition at line 45 of file testrumble.c.

46 {
47  int i;
48  char *name;
49  int index;
50 
51  /* Enable standard application logging */
52  SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
53 
54  name = NULL;
55  index = -1;
56  if (argc > 1) {
57  size_t l;
58  name = argv[1];
59  if ((strcmp(name, "--help") == 0) || (strcmp(name, "-h") == 0)) {
60  SDL_Log("USAGE: %s [device]\n"
61  "If device is a two-digit number it'll use it as an index, otherwise\n"
62  "it'll use it as if it were part of the device's name.\n",
63  argv[0]);
64  return 0;
65  }
66 
67  l = SDL_strlen(name);
68  if ((l < 3) && SDL_isdigit(name[0]) && ((l == 1) || SDL_isdigit(name[1]))) {
69  index = SDL_atoi(name);
70  name = NULL;
71  }
72  }
73 
74  /* Initialize the force feedbackness */
75  SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_JOYSTICK |
76  SDL_INIT_HAPTIC);
77  SDL_Log("%d Haptic devices detected.\n", SDL_NumHaptics());
78  if (SDL_NumHaptics() > 0) {
79  /* We'll just use index or the first force feedback device found */
80  if (name == NULL) {
81  i = (index != -1) ? index : 0;
82  }
83  /* Try to find matching device */
84  else {
85  for (i = 0; i < SDL_NumHaptics(); i++) {
86  if (strstr(SDL_HapticName(i), name) != NULL)
87  break;
88  }
89 
90  if (i >= SDL_NumHaptics()) {
91  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unable to find device matching '%s', aborting.\n",
92  name);
93  return 1;
94  }
95  }
96 
97  haptic = SDL_HapticOpen(i);
98  if (haptic == NULL) {
99  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unable to create the haptic device: %s\n",
100  SDL_GetError());
101  return 1;
102  }
103  SDL_Log("Device: %s\n", SDL_HapticName(i));
104  } else {
105  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "No Haptic devices found!\n");
106  return 1;
107  }
108 
109  /* We only want force feedback errors. */
110  SDL_ClearError();
111 
112  if (SDL_HapticRumbleSupported(haptic) == SDL_FALSE) {
113  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Rumble not supported!\n");
114  return 1;
115  }
116  if (SDL_HapticRumbleInit(haptic) != 0) {
117  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to initialize rumble: %s\n", SDL_GetError());
118  return 1;
119  }
120  SDL_Log("Playing 2 second rumble at 0.5 magnitude.\n");
121  if (SDL_HapticRumblePlay(haptic, 0.5, 5000) != 0) {
122  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to play rumble: %s\n", SDL_GetError() );
123  return 1;
124  }
125  SDL_Delay(2000);
126  SDL_Log("Stopping rumble.\n");
127  SDL_HapticRumbleStop(haptic);
128  SDL_Delay(2000);
129  SDL_Log("Playing 2 second rumble at 0.3 magnitude.\n");
130  if (SDL_HapticRumblePlay(haptic, 0.3f, 5000) != 0) {
131  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to play rumble: %s\n", SDL_GetError() );
132  return 1;
133  }
134  SDL_Delay(2000);
135 
136  /* Quit */
137  if (haptic != NULL)
138  SDL_HapticClose(haptic);
139  SDL_Quit();
140 
141  return 0;
142 }
SDL_INIT_TIMER
#define SDL_INIT_TIMER
Definition: SDL.h:80
SDL_INIT_JOYSTICK
#define SDL_INIT_JOYSTICK
Definition: SDL.h:83
SDL_INIT_HAPTIC
#define SDL_INIT_HAPTIC
Definition: SDL.h:84
SDL_INIT_VIDEO
#define SDL_INIT_VIDEO
Definition: SDL.h:82
SDL_HapticRumbleSupported
#define SDL_HapticRumbleSupported
Definition: SDL_dynapi_overrides.h:185
SDL_GetError
#define SDL_GetError
Definition: SDL_dynapi_overrides.h:113
SDL_isdigit
#define SDL_isdigit
Definition: SDL_dynapi_overrides.h:382
SDL_HapticRumbleStop
#define SDL_HapticRumbleStop
Definition: SDL_dynapi_overrides.h:188
SDL_strlen
#define SDL_strlen
Definition: SDL_dynapi_overrides.h:393
SDL_HapticRumbleInit
#define SDL_HapticRumbleInit
Definition: SDL_dynapi_overrides.h:186
SDL_LogSetPriority
#define SDL_LogSetPriority
Definition: SDL_dynapi_overrides.h:236
SDL_ClearError
#define SDL_ClearError
Definition: SDL_dynapi_overrides.h:114
SDL_HapticRumblePlay
#define SDL_HapticRumblePlay
Definition: SDL_dynapi_overrides.h:187
SDL_LogError
#define SDL_LogError
Definition: SDL_dynapi_overrides.h:36
SDL_HapticName
#define SDL_HapticName
Definition: SDL_dynapi_overrides.h:160
SDL_HapticClose
#define SDL_HapticClose
Definition: SDL_dynapi_overrides.h:168
SDL_Delay
#define SDL_Delay
Definition: SDL_dynapi_overrides.h:486
SDL_Quit
#define SDL_Quit
Definition: SDL_dynapi_overrides.h:58
SDL_Init
#define SDL_Init
Definition: SDL_dynapi_overrides.h:54
SDL_atoi
#define SDL_atoi
Definition: SDL_dynapi_overrides.h:410
SDL_Log
#define SDL_Log
Definition: SDL_dynapi_overrides.h:31
SDL_HapticOpen
#define SDL_HapticOpen
Definition: SDL_dynapi_overrides.h:161
SDL_NumHaptics
#define SDL_NumHaptics
Definition: SDL_dynapi_overrides.h:159
SDL_LOG_PRIORITY_INFO
@ SDL_LOG_PRIORITY_INFO
Definition: SDL_log.h:106
SDL_LOG_CATEGORY_APPLICATION
@ SDL_LOG_CATEGORY_APPLICATION
Definition: SDL_log.h:66
index
GLuint index
Definition: SDL_opengl_glext.h:663
name
GLuint const GLchar * name
Definition: SDL_opengl_glext.h:663
SDL_FALSE
@ SDL_FALSE
Definition: SDL_stdinc.h:169
l
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int return Display Window Cursor return Display Window return Display Drawable GC int int unsigned int unsigned int return Display Drawable GC int int _Xconst char int return Display Drawable GC int int unsigned int unsigned int return Display return Display Cursor return Display GC return XModifierKeymap return char Display Window int return Display return Display int int int return Display long XVisualInfo int return Display Window Atom long long Bool Atom Atom int unsigned long unsigned long unsigned char * l)
Definition: SDL_x11sym.h:80
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
NULL
#define NULL
Definition: begin_code.h:163
haptic
static SDL_Haptic * haptic
Definition: testrumble.c:36

References haptic, i, l, NULL, SDL_atoi, SDL_ClearError, SDL_Delay, SDL_FALSE, SDL_GetError, SDL_HapticClose, SDL_HapticName, SDL_HapticOpen, SDL_HapticRumbleInit, SDL_HapticRumblePlay, SDL_HapticRumbleStop, SDL_HapticRumbleSupported, SDL_Init, SDL_INIT_HAPTIC, SDL_INIT_JOYSTICK, SDL_INIT_TIMER, SDL_INIT_VIDEO, SDL_isdigit, SDL_Log, SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, SDL_LogError, SDL_LogSetPriority, SDL_NumHaptics, SDL_Quit, and SDL_strlen.

Variable Documentation

◆ haptic

SDL_Haptic* haptic
static

Definition at line 36 of file testrumble.c.

Referenced by main().